參數(shù)資料
型號: TMX320F28069UPFPA
廠商: Texas Instruments
文件頁數(shù): 121/174頁
文件大小: 0K
描述: IC MCU 32BIT 128KB FLASH 80HTQFP
產(chǎn)品培訓(xùn)模塊: ControlSUITE
Piccolo F2806x
標(biāo)準(zhǔn)包裝: 1
系列: TMS320F2806x, Piccolo™, C2000™
核心處理器: C28x
芯體尺寸: 32-位
速度: 80MHz
連通性: CAN,I²C,McBSP,SCI,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 40
程序存儲器容量: 256KB(128K x 16)
程序存儲器類型: 閃存
RAM 容量: 50K x 16
電壓 - 電源 (Vcc/Vdd): 1.71 V ~ 1.995 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 12x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 80-TQFP 裸露焊盤
包裝: 托盤
其它名稱: 296-30085
TMX320F28069UPFPA-ND
SPRS698D – NOVEMBER 2010 – REVISED DECEMBER 2012
2.9.3
PLL-Based Clock Module
The devices have an on-chip, PLL-based clock module. This module provides all the necessary clocking
signals for the device, as well as control for low-power mode entry. The PLL has a 5-bit ratio control
PLLCR[DIV] to select different CPU clock rates. The watchdog module should be disabled before writing
to the PLLCR register. The watchdog module can be re-enabled (if need be) after the PLL module has
stabilized, which takes 1 ms. The input clock and PLLCR[DIV] bits should be chosen in such a way that
the output frequency of the PLL (VCOCLK) is at least 50 MHz.
Table 2-15. PLL Settings
SYSCLKOUT (CLKIN)
PLLCR[DIV] VALUE(1) (2)
PLLSTS[DIVSEL] = 0 or 1(3)
PLLSTS[DIVSEL] = 2
PLLSTS[DIVSEL] = 3
00000 (PLL bypass)
OSCCLK/4 (Default)(1)
OSCCLK/2
OSCCLK
00001
(OSCCLK * 1)/4
(OSCCLK * 1)/2
(OSCCLK * 1)/1
00010
(OSCCLK * 2)/4
(OSCCLK * 2)/2
(OSCCLK * 2)/1
00011
(OSCCLK * 3)/4
(OSCCLK * 3)/2
(OSCCLK * 3)/1
00100
(OSCCLK * 4)/4
(OSCCLK * 4)/2
(OSCCLK * 4)/1
00101
(OSCCLK * 5)/4
(OSCCLK * 5)/2
(OSCCLK * 5)/1
00110
(OSCCLK * 6)/4
(OSCCLK * 6)/2
(OSCCLK * 6)/1
00111
(OSCCLK * 7)/4
(OSCCLK * 7)/2
(OSCCLK * 7)/1
01000
(OSCCLK * 8)/4
(OSCCLK * 8)/2
(OSCCLK * 8)/1
01001
(OSCCLK * 9)/4
(OSCCLK * 9)/2
(OSCCLK * 9)/1
01010
(OSCCLK * 10)/4
(OSCCLK * 10)/2
(OSCCLK * 10)/1
01011
(OSCCLK * 11)/4
(OSCCLK * 11)/2
(OSCCLK * 11)/1
01100
(OSCCLK * 12)/4
(OSCCLK * 12)/2
(OSCCLK * 12)/1
01101
(OSCCLK * 13)/4
(OSCCLK * 13)/2
(OSCCLK * 13)/1
01110
(OSCCLK * 14)/4
(OSCCLK * 14)/2
(OSCCLK * 14)/1
01111
(OSCCLK * 15)/4
(OSCCLK * 15)/2
(OSCCLK * 15)/1
10000
(OSCCLK * 16)/4
(OSCCLK * 16)/2
(OSCCLK * 16)/1
10001
(OSCCLK * 17)/4
(OSCCLK * 17)/2
(OSCCLK * 17)/1
10010
(OSCCLK * 18)/4
(OSCCLK * 18)/2
(OSCCLK * 18)/1
(1)
The PLL control register (PLLCR) and PLL Status Register (PLLSTS) are reset to their default state by the XRS signal or a watchdog
reset only. A reset issued by the debugger or the missing clock detect logic has no effect.
(2)
This register is EALLOW protected. See the "Systems Control and Interrupts" chapter of the TMS320x2806x Piccolo Technical
Reference Manual (literature number SPRUH18) for more information.
(3)
By default, PLLSTS[DIVSEL] is configured for /4. (The boot ROM changes this to /1.) PLLSTS[DIVSEL] must be 0 before writing to the
PLLCR and should be changed only after PLLSTS[PLLLOCKS] = 1.
Table 2-16. CLKIN Divide Options
PLLSTS [DIVSEL]
CLKIN DIVIDE
0
/4
1
/4
2
/2
3
/1
50
Device Overview
Copyright 2010–2012, Texas Instruments Incorporated
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